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120200142 = 23157127601
BaseRepresentation
bin1110010101000…
…01101111001110
322101011210121010
413022201233032
5221232401032
615532150050
72656453506
oct712415716
9271153533
10120200142
1161939167
1234308326
131bb9705a
1411d6ca06
15a844ccc
hex72a1bce

120200142 has 16 divisors (see below), whose sum is σ = 241933392. Its totient is φ = 39811200.

The previous prime is 120200123. The next prime is 120200167. The reversal of 120200142 is 241002021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62859 + ... + 64742.

It is an arithmetic number, because the mean of its divisors is an integer number (15120837).

Almost surely, 2120200142 is an apocalyptic number.

120200142 is an abundant number, since it is smaller than the sum of its proper divisors (121733250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120200142 is a wasteful number, since it uses less digits than its factorization.

120200142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127763.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 120200142 is about 10963.5825349199. The cubic root of 120200142 is about 493.5164806762.

Adding to 120200142 its reverse (241002021), we get a palindrome (361202163).

The spelling of 120200142 in words is "one hundred twenty million, two hundred thousand, one hundred forty-two".

Divisors: 1 2 3 6 157 314 471 942 127601 255202 382803 765606 20033357 40066714 60100071 120200142